JP2000017509A - Rubber groves - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain rubber groves having rubber membranes with sufficient membrane thicknesses by using a deproteinized natural rubber latex stabilized by a surfactant. SOLUTION: This rubber groves are characterized by forming the groves out of a heat-sensitive coagulable latex obtained by blending 100 pts.wt. rubber solid component of a deproteinized natural rubber latex having <=0.10 wt.% nitrogen content with (A) 0.1-20 pts.wt. agent for forming the latex into a heat- sensitive one, and (B) 0.1-10 pts.wt. anode coagulant regulated so that the weight ratio (A/B) may be within the range of 0.5-10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a rubber glove made of a deproteinized natural rubber latex and having a sufficient film thickness.

[0002]

2. Description of the Related Art Natural rubber has high elongation, high elasticity,
Since it has characteristics such as good film strength, it is conventionally used from industrial products such as automobile tires, belts, adhesives and adhesives, household products such as gloves, medical devices such as catheters, nursing devices, It is used in a wide range of fields, including contraceptives.

For example, in gloves, a so-called direct method in which a mold (a) is directly immersed in natural rubber latex, or a so-called anode coagulation method in which an anode adhesive is applied to the mold (b) and the mold is immersed in natural rubber latex. (C) Processing is performed using a so-called heat-sensitive method or the like in which a preheated mold is immersed in a natural rubber latex containing a heat-sensitive agent, and a gel is sequentially deposited on the mold surface.

[0004] These production methods are appropriately selected depending on the type of the above-mentioned glove product. In general, when a product such as a condom having a very thin rubber film is produced, the direct method is used. The anode adhesion method is used when manufacturing gloves for work, and the heat-sensitive method is used for manufacturing thicker gloves such as work gloves. However, in recent years, when medical devices such as surgical gloves and various catheters made of natural rubber are used, an immediate type (I) showing symptoms of dyspnea and anaphylactoid symptoms (angioedema, urticaria, collapse, cyanosis, etc.) are obtained several hours later. (Type) It has been reported to cause allergies. It is presumed that such an immediate allergy is induced by a protein in natural rubber as an antigen.

[0005] Further, since the type and amount of the protein contained in the natural rubber latex vary depending on the place of production and the time of production of the natural rubber latex, the quality and vulcanization characteristics of the natural rubber may vary, This has the effect of reducing mechanical properties such as creep properties and aging resistance of natural rubber and electrical properties such as insulation. In view of the above problems, deproteinized natural rubber latex from which proteins have been highly removed has been regarded as useful.

[0006] JP-A-6-56902 discloses that a protein-degrading enzyme (protease) and a surfactant are added to natural rubber latex to decompose a protein, and then a creamy deproteinized natural rubber component is separated by centrifugation. A method for doing so is disclosed. According to such a method, proteins in natural rubber latex can be removed at a very high level,
The protein content is reduced until the nitrogen content (N%) measured by the Kjeldahl method is below 0.1% by weight.

[0007] Therefore, it is expected that a rubber product that solves the problems of conventional allergic reactions and the like can be obtained by using latex from which proteins are highly removed as described above.

[0008]

However, when the present inventors try to produce a rubber product by the heat-sensitive method using the above-mentioned deproteinized natural rubber latex, a rubber product having a good film thickness cannot be obtained. For example, it has been revealed that, for example, gloves do not have a sufficient soft feeling and water resistance when worn.

[0009] This is because, as disclosed in the above publication, a surfactant generally used for removing proteins from natural rubber latex remains in the latex. That is, in order to efficiently remove proteins from natural rubber latex using a surfactant, it is necessary to adjust the pH of the natural rubber latex to be used to a predetermined range (alkaline range).
Further, the obtained deproteinized natural rubber latex maintains the latex stability by containing the above-mentioned surfactant.

However, in the formation of a rubber film by the heat-sensitive method, the formation of the rubber film may be hindered in the pH range of the latex, and a rubber film having a good film thickness may not be obtained. In addition, it is considered that the surfactant remaining in the latex stabilizes the latex, which prevents deposition of the gel on the surface of the mold, thereby hindering the formation of the rubber film.

Accordingly, an object of the present invention is to use a deproteinized natural rubber latex stabilized by a surfactant,
An object of the present invention is to provide a rubber glove having a sufficient film thickness.

[0012]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, a predetermined amount of heat-sensitized deproteinized natural rubber latex stabilized by a surfactant or the like has been obtained. When the agent and the anode coagulant are combined together, the gel can be sufficiently deposited on the mold by, for example, a so-called heat-sensitive method of dipping a pre-heated glove mold in this latex, and a sufficient film can be obtained. The present inventors have found a new fact that a thick rubber glove can be obtained, and have completed the present invention.

That is, in the rubber glove of the present invention, 0.1 to 20 parts by weight of the heat-sensitive rubber based on 100 parts by weight of the solid content of the deproteinized natural rubber latex having a nitrogen content of 0.1% by weight or less. Agent (A) and 0.1 to 10 parts by weight of anode coagulant (B) were formed using a thermosetting latex in which the weight ratio (A / B) was blended in the range of 0.5 to 10. ,
The thickness of the rubber film is 1 mm or more.

According to the present invention, the deproteinized natural rubber latex stabilized by the surfactant becomes unstable to such an extent that the predetermined amount of the heat-sensitizing agent and the anodic coagulant cause gelation. It is presumed. Therefore, according to the present invention, by immersing, for example, a preheated glove mold or the like in this destabilized latex,
By depositing a sufficient amount of gel on the surface of the mold, a rubber glove having a sufficient film thickness of 1 mm or more can be formed.

The rubber glove thus obtained is provided with a soft wearing feeling, excellent water resistance and the like. Since the heat-sensitive coagulable latex used in the rubber glove of the present invention uses a deproteinized natural rubber latex, there is no variation in quality, vulcanization characteristics and the like, and as a result, it shows excellent rubber characteristics. Moreover, since the protein in the rubber has been removed,
Rubber gloves that do not cause immediate allergy can be produced.

From the viewpoint of further improving the heat-sensitive coagulability of the latex, the heat-sensitizing agent is an ammonium salt or a water-soluble polymer having a cloud point of from room temperature to 100 ° C. Preferably, the agent is a metal salt or organic alkylamine salt having an ionic value of 2 or more.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. The heat-sensitive coagulable latex used in the present invention is obtained by blending a predetermined amount of a heat-sensitizing agent and an anode coagulant with a deproteinized natural rubber latex. [Protein Degradation Treatment of Natural Rubber Latex] The above-mentioned deproteinized natural rubber latex is prepared, for example, by the method described in JP-A-6-5690.
It can be obtained by subjecting a natural rubber latex to a proteolytic treatment in accordance with the method disclosed in Japanese Patent Publication No. 2 (JP-A) No. 2 (1999) -1990. That is,
It is obtained by adding a protease to natural rubber latex to degrade the protein, and then repeatedly washing the latex with a surfactant. Washing may be performed by centrifugation or the like.

The natural rubber latex used in the present invention may be either a commercially available ammonia-treated latex or a fresh field latex. A conventionally known protease can be used as the protease, and is not particularly limited. For example, an alkaline protease is preferably used. The protease may be derived from a bacterium, a filamentous fungus, a yeast, or the like, but among them, it is preferable to use a bacterium. In addition, enzymes such as lipase, esterase, amylase, laccase, and cellulase may be used in combination.

When an alkaline protease is used as a protease, its activity is suitably in the range of 0.1 to 50 APU / g, preferably 1 to 25 APU / g. The enzyme activity is determined by the Anson-hemoglobin method (Anso
n. ML, J. Gen. Physiol., 22, 79 (1938)). That is, a reaction is performed for 10 minutes at a temperature of 25 ° C. and a pH of 10.5 in a solution adjusted so that the final concentration of urea-denatured hemoglobin used as a substrate is 14.7 mg / ml, and then trichloroacetic acid is added to the reaction solution. Add to a concentration of 31.25 mg / ml. Next, the soluble matter of trichloroacetic acid was colored with a phenol reagent, and the activity per 10 minutes of the reaction was determined by a calibration curve with the color degree of 1 mol of tyrosine as 1 APU, which was converted to 1 minute. It was measured. In addition, 1
APU refers to the amount of protease that gives the amount of soluble trichloroacetic acid per minute with the same degree of color development as one mole of tyrosine develops with a phenol reagent. However,
The activity measurement of the alkaline protease is not limited to this measurement method.

The amount of the proteolytic enzyme to be added is appropriately set according to the enzymatic activity, and is usually 0.0001 to 2 parts per 100 parts by weight of the solid content of the natural rubber latex.
0 parts by weight, preferably in the range of 0.001 to 10 parts by weight. If the amount of the protease is below the above range, the protein in the latex may not be sufficiently degraded. On the other hand, when the amount of the protease added exceeds the above range, the activity of the enzyme may be reduced and the cost may be increased. When adding the enzyme, other additives such as a pH adjuster may be added.

The processing time of the proteolytic treatment is also appropriately set according to the enzyme activity, and is not particularly limited. However, it is usually preferable to perform the treatment for several minutes to about one week. During the proteolytic treatment, the latex may be agitated or may be allowed to stand. The temperature may be adjusted as needed, but the temperature suitable for the treatment is 5 to 90 ° C, preferably 20 to 60 ° C. When the treatment temperature exceeds 90 ° C., the enzyme is quickly deactivated, and when the treatment temperature is less than 5 ° C., the reaction of the enzyme becomes difficult to proceed.

As a method for washing latex particles with a surfactant, for example, a method in which a surfactant is added to latex that has been subjected to an enzyme treatment and centrifugation is performed can be suitably employed. In this case, the surfactant is a rubber solid content of latex of 10%.
It is appropriate to add in the range of 0.001 to 20 parts by weight with respect to 0 parts by weight. In the centrifugation treatment, first, a surfactant is added to the natural rubber latex that has been subjected to the protein decomposition treatment, and centrifugation may be performed at 5,000 to 10,000 rpm for 1 to 60 minutes. The centrifugation may be performed once or several times. Usually, a single centrifugation process can provide a deproteinized natural rubber latex from which proteins are highly removed. The centrifugation treatment may be performed after diluting with water so that the rubber content of the natural rubber latex subjected to the protein decomposition treatment is 5 to 40% by weight, preferably 10 to 30% by weight.

After the centrifugation, the creamy rubber component separated into the upper layer is taken out. Such an operation may be performed continuously by a disk-type centrifuge. The extracted creamy rubber component is supplied as deproteinized natural rubber latex by diluting with water as needed. Also,
Instead of centrifugation, a washing method of aggregating and separating latex particles can be employed.

Examples of the surfactant include (a) an anionic surfactant, (b) a nonionic surfactant, and (c)
Zwitterionic surfactants can be used. Examples of the anionic surfactant (a) include carboxylic acid-based, sulfonic acid-based, sulfate-based, and phosphate-based surfactants. Examples of the nonionic surfactant (b) include surfactants such as polyoxyalkylene ethers, polyoxyalkylene esters, polyhydric alcohol fatty acid esters, sugar fatty acid esters, and alkylpolyglycoside surfactants. Is mentioned. (c) zwitterionic surfactants include:
For example, amino acid type, betaine type, amine oxide type and the like can be mentioned.

In the above description, after the enzymatic decomposition, a surfactant is added to wash the latex. However, the enzyme and the surfactant may be added and treated at the same time. In the present invention, the method for obtaining the deproteinized natural rubber is not particularly limited. In addition, when the above-described enzymes and surfactants are used, other additives, such as a pH adjuster and a dispersant, may be added.

Examples of the pH adjuster include phosphates such as potassium dihydrogen phosphate, dipotassium hydrogen phosphate, sodium dihydrogen phosphate and disodium hydrogen phosphate, acetates such as potassium acetate and sodium acetate, and sulfuric acid. , Acetic acid, hydrochloric acid,
Acids such as nitric acid, citric acid and succinic acid or salts thereof, ammonia, potassium hydroxide, sodium hydroxide, sodium carbonate, sodium hydrogen carbonate and the like can be mentioned. The amount of the pH adjuster to be added is usually 0.01 to 0.5 part by weight based on 100 parts by weight of the rubber solid content of the latex.

In the protein degradation treatment, in addition to the above components, styrene sulfonic acid copolymer, naphthalene sulfonic acid formalin condensate, lignin sulfonic acid, polycyclic aromatic sulfonic acid copolymer, acrylic acid and maleic anhydride Dispersants such as acid homopolymers and copolymers, isobutylene-acrylic acid and isobutylene-maleic anhydride copolymers may be used in combination.

The nitrogen content (N%) of the deproteinized natural rubber latex used in the present invention is preferably adjusted to 0.10% by weight or less from the viewpoint of suppressing the occurrence of immediate allergy. . The nitrogen content (N%) can be appropriately adjusted depending on the degree of the proteolytic treatment. In order to more reliably suppress the occurrence of immediate allergy, the nitrogen content (N%) is preferably adjusted to be 0.05% by weight or less, particularly within the above range, and is preferably 0.02% by weight or less. It is more preferable to make adjustments such that

[Preparation of thermocoagulable latex] The thermocoagulable latex used in the rubber glove of the present invention is obtained by mixing a predetermined amount of a thermosensitizer and an anode coagulant with the above-mentioned deproteinized natural rubber latex. When preparing the above thermosetting coagulable latex, the deproteinized natural rubber latex is used after being diluted so that the rubber solid content is in the range of 30 to 52% by weight, preferably 38 to 48% by weight. Is good.

If the rubber solids content is higher than the above range, the latex may become more unstable and solidify.
On the other hand, if the rubber solid content is smaller than the above range, a rubber product having a film thickness sufficient for practical use may not be obtained because the rubber content in the solution is small. Examples of the thermal sensitizer used in the present invention include inorganic or organic ammonium salts, and water-soluble polymers having a cloud point of room temperature or higher and 100 ° C. or lower. More specifically, for example, the water-soluble polymer includes polyvinyl methyl ether, polyalkylene glycol, polyether polyformal, and functional polysiloxane. Examples of the inorganic or organic ammonium salts include ammonium nitrate, ammonium acetate, various zinc ammonium complex salts and the like.

Examples of the anode coagulant include metal salts and organic alkylamine salts having an ionic value of 2 or more. More specifically, examples of the metal salt having an ionic value of 2 or more include calcium nitrate and calcium chloride. These are used as aqueous solutions. The compounding amount of the thermal sensitizer is 0.1 to 20 parts by weight, preferably 0.5 to 10 parts by weight, based on 100 parts by weight of the rubber solid content of the deproteinized natural rubber latex. The compounding amount of the anode coagulant is 100% of the solid content of the deproteinized natural rubber latex.
It is 0.1 to 10 parts by weight, preferably 0.5 to 8 parts by weight based on parts by weight. The weight ratio (A / B) of the heat-sensitive agent (A) to the anode coagulant (B) is 0.5 to 0.5.
It should be in the range of 10.

When one of the compounding amount of the heat sensitizer, the anode coagulant, and the compounding ratio of the heat sensitizer and the anode coagulant is larger than the above range, the latex becomes more unstable, It may cause gelation and solidification. On the other hand, when it is smaller than the above range, a rubber product having a good film thickness may not be obtained. [Rubber glove and method for producing the same] Next, the rubber glove of the present invention and the method for producing the same will be described.

The method for producing the rubber glove of the present invention is as follows. After blending the following various additives into the heat-sensitive coagulable latex, the preheated glove mold is immersed, then the mold is pulled up, dried and vulcanized. Is used. As additives to be added to the thermosetting coagulable latex, in addition to vulcanizing agents, conventionally known vulcanization accelerators, vulcanization accelerating assistants (activators), antioxidants, fillers, dispersants and the like. Various additives can be mentioned.

Examples of the vulcanizing agent include sulfur and organic sulfur-containing compounds. The amount of the vulcanizing agent is about 0.5 to 3 parts by weight based on 100 parts by weight of the rubber solid content of the rubber latex. Is preferred. Examples of the vulcanization accelerator include PX (zinc N-ethyl-N-phenyldithiocarbamate), PZ (zinc dimethyldithiocarbamate), and EZ
(Zinc diethyldithiocarbamate), BZ (Zinc dibutyldithiocarbamate), MZ (Zinc salt of 2-mercaptobenzothiazole), TT (Tetramethylthiuram disulfide) and the like. These can be used alone or in combination of two or more. The compounding amount is preferably about 0.5 to 3 parts by weight based on 100 parts by weight of the rubber solid content of the rubber latex.

Examples of the vulcanization accelerator include zinc white. The compounding amount is preferably 0.5 to 3 parts by weight based on 100 parts by weight of the rubber solid content of the rubber latex. In general, non-staining phenols are preferably used as the antioxidant, but amines may be used. The amount of the antioxidant is preferably about 0.5 to 3 parts by weight based on 100 parts by weight of the rubber solid content of the rubber latex.

As the filler, for example, kaolin clay,
Hard clay, calcium carbonate and the like can be mentioned. The compounding amount is preferably 10 parts by weight or less based on 100 parts by weight of the rubber solid content of the rubber latex. In addition, a dispersant may be blended in order to improve the dispersion of the additives in the rubber latex. Examples of such a dispersant include various anionic surfactants. The amount of the dispersing agent is from 0.3 to the weight of the component to be dispersed.
It is preferably about 1.0% by weight.

As the mold, for example, pottery and ceramics can be used. The preheating temperature of the mold can be appropriately determined according to the heat-sensitizing agent and the rubber material to be used, but it is usually preferable to preheat the surface to a temperature of about 80 to 100 ° C, preferably about 85 to 95 ° C. . Vulcanization conditions are usually 1
It is preferable to perform the treatment at 00 to 120 ° C. for about 30 to 90 minutes.

The rubber gloves of the present invention are used to protect hands in, for example, surgery, inspections at medical sites, and operations using chemicals, and are designed in accordance with the shape of human hands. Is done. The thickness of the rubber film in the rubber glove of the present invention is a thickness that could not be formed by using a conventionally deproteinized natural rubber latex, and is 1 mm.
As described above, it is preferably adjusted within a range of 1 to 3 mm depending on the type of glove and the purpose of use. When the thickness of the rubber film is 1
Rubber gloves of less than mm can be formed by a conventional direct method or anodic adhesion method even if a deproteinized natural rubber latex containing a surfactant is used.

The physical properties (stretchability,
The tensile stress and the like are appropriately adjusted depending on the type of rubber glove, purpose of use, and the like. For example, when the rubber glove of the present invention is used as a work glove, its film thickness can give a soft feeling, characteristics such as water resistance can be made good, and rubber breakage and the like can be obtained. It is appropriately selected within a range where there is no fear, and is usually 0.5 to 3 mm, preferably 0.8 to 2 mm.
Is set in the range.

The elasticity of the rubber glove is determined by measuring the elongation determined by a measuring method in accordance with JIS K 6301 so that the glove can be easily attached and detached and has the elasticity necessary to exhibit good fit. Usually, it is 700 to 1000%, preferably 800 to 900%. Further, the tensile stress of the rubber glove is usually 20 to 40 MPa, preferably 25 to 3 MPa, which is determined by a measuring method according to JIS K6301 so that the glove can be easily worn on the wearer's hand.
The pressure is preferably 5 MPa.

In the above description, the preheated mold is immersed in the heat-coagulable latex. However, instead of the heat-coagulable latex, a deproteinizing agent which does not contain a heat-sensitizing agent and an anode coagulant is used. Vulcanization (hereinafter referred to as pre-vulcanization) by blending the above various additives with natural rubber latex, and deproteinization prepared by blending a heat-sensitive agent and an anode coagulant into the pre-vulcanized latex Natural rubber latex may be used.

In this case, the pre-vulcanization is preferably carried out usually at 30 to 50 ° C. for about 15 to 30 hours. Further, a solid deproteinized natural rubber obtained by coagulating and drying a rubber component from the thermosensitive coagulable latex may be used as a raw material of a rubber product.

[0043]

The present invention will be described below in detail with reference to examples and comparative examples. Reference Example (Preparation of deproteinized natural rubber latex) High ammonia latex of natural rubber was diluted with water to prepare 100 g of natural rubber latex having a rubber solid content of 30% by weight.

Subsequently, the pH was adjusted to 9.0 by adding sodium dihydrogen phosphate as a pH adjuster to the latex, and 0.02 g of a protease (protease) and a surfactant (polyoxyethylene lauryl ether sulfate) were added. Sodium, 1 g of Emal E-70C (manufactured by Kao Corporation) was added, and the mixture was allowed to stand at 30 ° C for 24 hours. After standing, water was added to the natural rubber latex to dilute it to 300 g. Then
Centrifugation was performed at 1000 rpm (gravity acceleration about 900 G) for 30 minutes.

The creamy fraction thus separated into the upper layer was taken out, dried under reduced pressure for 24 hours, and the nitrogen content (N%) of the rubber obtained by the Kjeldahl method was determined to be 0.015%. . Example 1 (Production of rubber gloves) 166.7 g of a deproteinized natural rubber latex (total solid content: 60.0% by weight, nitrogen content: 0.015%, pH: 10.8) obtained in the above reference example (rubber solids) Per 100 parts by weight), various additives (colloidal sulfur dispersed in water, zinc white and Noxeller BZ) were added, and the mixture was aged (precured) at 40 ° C. for 24 hours. In addition,
The amounts of the colloidal sulfur, zincated and Noxeller BZ added were 1 part by weight, 1 part by weight and 0.6 part by weight, respectively.

Next, the latex was cooled to 20 ° C., and polyvinyl methyl ether was added as a heat sensitizer to 0.5 ° C.
Parts by weight, and 0.5 parts by weight of an aqueous solution of calcium nitrate as an anode coagulant. The amount of the calcium nitrate aqueous solution indicates the weight of calcium nitrate itself. Also, a heat-sensitive agent (A) and an anode adhesive (B)
Was 0.5 in terms of weight ratio (A / B). The content of the surfactant in the deproteinized natural rubber latex was 0.25% by weight based on the rubber solid content.

Next, a ceramic glove mold preheated to 90 ° C. was immersed in the latex containing the heat sensitizer and the anode coagulant for 30 seconds.
By vulcanizing for 90 minutes, a rubber glove having a rubber film thickness of 1.0 mm was produced. Examples 2 and 3 and Comparative Examples 1 and 2 Rubber gloves were produced in the same manner as in Example 1 except that the amounts of the heat-sensitive agent and the anode adhesive were set to the values shown in Table 1.

Comparative Example 3 A commercial high ammonia natural rubber latex (concentration of rubber solids: 60.0% by weight, nitrogen content: 0.32% by weight) was used in place of the deproteinized natural rubber latex obtained in the above Reference Example. Rubber gloves were prepared in the same manner as in Example 1 except that The following tests were performed on the rubber gloves of Examples 1 to 3 and Comparative Examples 1 to 3 in accordance with JIS-6301, and their physical properties were evaluated.

(Tensile test) Test pieces (dumbbell-shaped No. 3: thickness 1.2 to 1.4 mm) for a tensile test specified in JIS-6301 were prepared from the rubber films of Examples and Comparative Examples. . And using this test piece, JIS-6301
According to the method of testing operation according to, when the tensile stress 500% elongation (500% modulus) M _500, elongation at break E _B
(%) And tensile strength T _B (MPa) were determined.

(Protein Content) In order to evaluate the amount of protein remaining in the rubber gloves obtained in the above Examples and Comparative Examples, the amount (μg / g) of the water-soluble protein in the rubber gloves was evaluated using A
It was measured according to the method described in STM D5712. (Glove wearing feeling) The wearing feeling when the rubber gloves obtained in each of Examples and Comparative Examples were actually worn was evaluated. The evaluation criteria are as follows. ◎: The feeling of wearing was extremely soft, the fingers could bend and stretch naturally, and it felt as if they were not wearing gloves. 〇: The feeling of wearing was soft, and the fingers could be bent and stretched naturally. Δ: The glove was felt somewhat hard, but there was no practical problem. X: The feeling of wearing was extremely poor, and fatigue was generated in the hands after wearing for a long time.

The above results are shown in Table 1 together with the amount of each component.
Shown in

[0052]

[Table 1]

As is clear from Table 1, in Examples 1 to 3, rubber gloves having a good film thickness could be produced by the heat-sensitive method, while in Comparative Examples, the rubber gloves solidified (Comparative Example). Examples 1) and a problem that a sufficient film thickness could not be obtained (Comparative Example 2) occurred. In Comparative Example 3 in which both the heat-sensitizing agent and the anode coagulant were added to the latex that had not been deproteinized (high ammonia latex), the latex was coagulated and a rubber film could not be formed.

[0054]

As described in detail above, according to the present invention, a rubber glove having a sufficient film thickness and good rubber properties can be produced from a deproteinized natural rubber latex. In addition, since the rubber gloves of the present invention have a high degree of protein removal, they do not cause immediate allergy.

Claims (2)

[Claims] 1. A rubber solid content 1 of a deproteinized natural rubber latex.
The weight ratio (A / B) of 0.1 to 20 parts by weight of the heat-sensitive agent (A) and 0.1 to 10 parts by weight of the anode coagulant (B) is 0.1 part by weight. A rubber glove, wherein the thickness of the rubber film is 1 mm or more, formed using the heat-sensitive coagulable latex compounded in the range of 5 to 10. 2. The heat-sensitive agent (A) is an ammonium salt or a water-soluble polymer having a cloud point of from room temperature to 100 ° C., and the anode cohesive agent (B) is a metal salt having an ionic value of 2 or more. The rubber glove according to claim 1, which is an organic alkylamine salt.